A waterproof roll material and its preparation method and construction method

Abstract

The present invention provides a waterproof coiled material and a preparation method and construction method thereof. A groove chain is provided at one end of the waterproof coiled material, and a convex chain is provided at the other end of the waterproof coiled material. The waterproof coiled material effectively solves the problem that the overlapping edges between the waterproof coiled materials are not completely sealed, and at the same time enhances the integrity between the waterproof coiled materials, reduces the possibility of leakage, reduces the waterproof maintenance cost of the project, and at the same time ensures the service life and use function of the building.

Description

Technical Field

[0001] The invention belongs to the technical field of building waterproof materials, and in particular relates to a waterproof coiled material and a preparation method and a construction method thereof. Background Art

[0002] At present, self-adhesive waterproofing membranes and polymer waterproofing membranes (PVC, TPO, etc.) are widely used. When constructing self-adhesive waterproofing membranes, after the first waterproofing membrane is laid, the next waterproofing membrane is laid, and an 80mm wide overlap is reserved between the upper and lower membranes to overlap them, so that they form a whole. When overlapping, the isolation film at the overlap of the upper and lower membranes is directly removed, so that the exposed adhesive on the overlap is bonded. When constructing polymer waterproofing membranes, after the first waterproofing membrane is laid, the next waterproofing membrane is laid, and an 60 or 80mm wide overlap is reserved between the upper and lower membranes to overlap them. When overlapping, a hot air welder is directly used to weld the overlaps, so that the overlaps are melted, and the overlaps of the upper and lower membranes are bonded as a whole after melting.

[0003] CN106894450A discloses a lap joint structure and construction method of a waterproof roll, belonging to the technical field of waterproof layer construction. The lap joint structure comprises two waterproof rolls with overlapping ends, wherein the end of one waterproof roll is in an asymmetrical concave shape, and the overlapping end of the other waterproof roll is in a corresponding convex shape, the overlapping parts of the two waterproof rolls are connected by an adhesive layer, and a waterproof reinforcement coating is also provided at the joint of the surface of the waterproof roll. The lap joint structure requires the end of the waterproof roll to be directly made into a concave-convex structure, which has high production cost, and also requires a waterproof reinforcement coating to improve the waterproof ability.

[0004] CN107143095A discloses a waterproof roll material, which has a protrusion on one side and a groove on the other side. The protrusions and grooves of adjacent waterproof roll materials cooperate with each other, and the width L of the overlapping edge of the waterproof roll material is greater than or equal to 6 cm and less than or equal to 12 cm. It is difficult to perform overlapping treatment at the overlapping edge. However, the waterproof roll material needs to control the exposed height of the protrusion and the sunken depth of the groove to be set to ha=K*h (0.25≤K<1, and K is a real number), and the weaving process is relatively complicated.

[0005] Therefore, it is urgent to develop a waterproof roll material that can solve the leakage problem of the overlapped edges of the current self-adhesive waterproof roll materials and polymer roll materials. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention aims to provide a waterproofing coiled material and a preparation method and construction method thereof. The waterproofing coiled material effectively solves the problem that the overlapping edges between waterproofing coiled materials are not completely sealed, and at the same time enhances the integrity between waterproofing coiled materials, reduces the possibility of leakage, reduces the waterproofing maintenance cost of the project, and at the same time ensures the service life and use function of the building.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a waterproof coiled material, wherein a groove chain is disposed at one end of the waterproof coiled material, and a convex chain is disposed at the other end of the waterproof coiled material.

[0009] When the waterproof membrane of the present invention is laid, the groove chain of one waterproof membrane and the convex chain of another waterproof membrane are tightly closed, thereby effectively solving the problem of incomplete sealing of the overlapping edges between the waterproof membranes, and at the same time enhancing the integrity between the waterproof membranes, reducing the possibility of leakage, reducing the waterproof maintenance cost of the project, and ensuring the service life and use function of the building.

[0010] Preferably, the waterproof membrane is a polymer waterproof membrane, which includes a polymer waterproof base membrane layer, a groove chain is arranged on the upper surface of one end of the polymer waterproof base membrane layer, and a convex chain is arranged on the lower surface of the other end of the polymer waterproof base membrane layer.

[0011] In the present invention, when the waterproofing roll is a polymer waterproofing roll, the waterproofing roll includes a polymer waterproofing base membrane layer, the upper surface of one end of the polymer waterproofing base membrane layer is provided with a groove chain, and the lower surface of the other end of the polymer waterproofing base membrane layer is provided with a convex chain. When two polymer waterproofing rolls are bonded, the groove chains and the convex chains on the waterproofing base membrane layers of the two waterproofing rolls are interlocked and matched with each other, so that the overlap of the two polymer waterproofing rolls is fused and bonded to form a closed whole, thereby enhancing the integrity between the two waterproofing rolls and reducing the possibility of leakage.

[0012] Preferably, the waterproof membrane is a polymer waterproof membrane, and the thickness of the polymer waterproof base membrane layer is 0.2-0.3 mm, for example, it can be 0.2 mm, 0.21 mm, 0.22 mm, 0.23 mm, 0.24 mm, 0.25 mm, 0.26 mm, 0.27 mm, 0.28 mm, 0.29 mm, or 0.3 mm.

[0013] Preferably, the waterproof coiled material is a polymer waterproof coiled material, and the material of the polymer waterproof base membrane layer is selected from any one of PVC, TPO, EPDM, EPD, EPM or EVA, or a combination of at least two of them.

[0014] Preferably, the waterproof coiled material is a polymer waterproof coiled material, and the materials of the grooved chain and the convex chain are independently selected from PE and / or PVC.

[0015] Preferably, the waterproof membrane is a polymer waterproof membrane, and the groove chain is arranged on the upper surface of one end of the polymer waterproof base membrane layer at a distance of 0 to 5 mm from the edge, for example, it can be 0 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc.

[0016] The upper surface of the groove chain disposed at one end of the polymer waterproof base membrane layer is 0 mm away from the edge, which means that one of the long sides of the groove chain is flush with the side of the polymer waterproof base membrane layer.

[0017] Preferably, the waterproof membrane is a polymer waterproof membrane, and the convex chain is arranged on the lower surface of the other end of the polymer waterproof base membrane layer at a distance of 60 to 65 mm from the edge, for example, it can be 60 mm, 61 mm, 62 mm, 63 mm, 64 mm, 65 mm, etc.

[0018] Preferably, the waterproof roll material is a self-adhesive waterproof roll material, which includes a first isolation membrane layer, a first self-adhesive rubber layer, a self-adhesive roll base layer, a second self-adhesive rubber layer and a second isolation membrane layer stacked in sequence, the upper surface of one end of the self-adhesive roll base layer is provided with a groove chain, which extends into the first self-adhesive rubber layer, and the lower surface of the other end of the self-adhesive roll base layer is provided with a convex chain, which extends into the second self-adhesive rubber layer.

[0019] In the present invention, when the waterproofing membrane is a self-adhesive waterproofing membrane, a groove chain is provided on the upper surface of one end of the self-adhesive membrane base layer, and a convex chain is provided on the lower surface of the other end of the self-adhesive membrane base layer. When two self-adhesive waterproofing membranes are bonded, the groove chain and the convex chain on the two waterproofing membrane base layers are interlocked and matched with each other, and the rubber layer at the overlap is fused and bonded to form a closed whole, thereby enhancing the integrity between the two waterproofing membranes and reducing the possibility of leakage.

[0020] Preferably, the waterproof membrane is a self-adhesive waterproof membrane, and the thickness of the first isolation film layer and the second isolation film layer are independently selected from 80-120 μm, for example, 80 μm, 85 μm, 90 μm, 95 μm, 100 μm, 105 μm, 110 μm, 115 μm, 120 μm, etc.

[0021] Preferably, the waterproof coiled material is a self-adhesive waterproof coiled material, and the first isolation film layer and the second isolation film layer are both made of PE.

[0022] Preferably, the waterproof membrane is a self-adhesive waterproof membrane, and the thickness of the first self-adhesive layer and the second self-adhesive layer are independently selected from 0.8-1.0 mm, for example, 0.8 mm, 0.82 mm, 0.84 mm, 0.86 mm, 0.88 mm, 0.9 mm, 0.92 mm, 0.94 mm, 0.96 mm, 0.98 mm, 1.0 mm, etc.

[0023] Preferably, the waterproof membrane is a self-adhesive waterproof membrane, and the materials of the first self-adhesive adhesive layer and the second self-adhesive adhesive layer are independently selected from asphalt and / or rubber.

[0024] Preferably, the waterproof membrane is a self-adhesive waterproof membrane, and the thickness of the base layer of the self-adhesive membrane is 1.0-4.0 mm, for example, it can be 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, etc.

[0025] Preferably, the waterproof roll material is a self-adhesive waterproof roll material, and the material of the base layer of the self-adhesive roll material is selected from any one of polyester fiber non-woven fabric, jute cloth or glass fiber felt, or a combination of at least two of them.

[0026] Preferably, the waterproof coiled material is a self-adhesive waterproof coiled material, and the groove chain and the convex chain are both made of PE.

[0027] Preferably, the waterproof membrane is a self-adhesive waterproof membrane, and the groove chain is arranged on the upper surface of one end of the self-adhesive membrane base layer at a distance of 0-5 mm from the edge, for example, it can be 0mm, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, etc.

[0028] Preferably, the waterproof membrane is a self-adhesive waterproof membrane, and the convex chain is arranged on the lower surface of the other end of the self-adhesive membrane base layer at a distance of 80-85 mm from the edge, for example, it can be 80mm, 80.5mm, 81mm, 81.5mm, 82mm, 82.5mm, 83mm, 83.5mm, 84mm, 84.5mm, 85mm, etc.

[0029] In a second aspect, the present invention provides a method for preparing the waterproof coiled material as described in the first aspect, wherein the method for preparing the waterproof coiled material comprises: compounding the groove chain and the convex chain into the waterproof coiled material by high-temperature heating.

[0030] Preferably, the waterproof roll is a polymer waterproof roll, and the preparation method of the waterproof roll is: the groove chain and the convex chain are respectively compounded to the two ends of the upper and lower surfaces of the polymer waterproof base membrane layer by high-temperature heating to obtain the waterproof roll.

[0031] Preferably, the waterproof membrane is a polymer waterproof membrane, and the high-temperature heating temperature is 440-520°C, for example, it can be 440°C, 450°C, 460°C, 470°C, 480°C, 490°C, 500°C, 510°C, 520°C, etc.

[0032] Preferably, the waterproof roll is a self-adhesive waterproof roll, and the preparation method of the waterproof roll comprises the following steps:

[0033] (1) High temperature compounding: the groove chain and the convex chain are respectively compounded to the two ends of the upper and lower surfaces of the self-adhesive coil tire base by high temperature heating;

[0034] (2) Coating and covering: The upper and lower surfaces of the base layer of the self-adhesive roll obtained after high-temperature compounding in step (1) are coated with self-adhesive materials to form a first self-adhesive layer and a second self-adhesive layer, and then the first and second self-adhesive layers are covered with a first isolation film layer and a second isolation film layer to obtain the waterproof roll.

[0035] Preferably, the waterproof membrane is a self-adhesive waterproof membrane, and the temperature of the high-temperature heating in step (1) is 400-500°C, for example, it can be 400°C, 410°C, 420°C, 430°C, 440°C, 450°C, 460°C, 470°C, 480°C, 490°C, 500°C, etc.

[0036] In a third aspect, the present invention provides a construction method for the waterproof membrane, which is as follows: take a piece of waterproof membrane for paving, and then pave the next piece of waterproof membrane, interlock the convex chain of the previous piece of waterproof membrane with the concave chain on the overlapping edge of the next piece of membrane, so that the overlapping parts of the two pieces of waterproof membrane are bonded to form a whole, and the overlapping paving is completed.

[0037] Preferably, the waterproof roll is a polymer waterproof roll, and the construction method of the waterproof roll is: take a piece of waterproof roll for paving, then pave the next piece of waterproof roll, interlock the convex chain of the previous piece of waterproof roll with the concave chain on the overlapping edge of the next piece of roll, and then perform hot air welding on the overlapping part of the two waterproof rolls to melt the overlapping part, bond them to form a whole, and complete the overlapping paving;

[0038] The waterproof membrane is a self-adhesive waterproof membrane, and the construction method of the waterproof membrane is as follows: take a piece of waterproof membrane, remove the second isolation film, and then lay it, then remove the second isolation film of the next waterproof membrane, and then interlock the convex chain of the previous waterproof membrane with the concave chain on the overlapping edge of the next membrane, so that the adhesive layers at the overlapping part of the two waterproof membranes are bonded to form a whole, and the overlapping laying is completed.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] The waterproof membrane effectively solves the problem of incomplete sealing of overlapping edges between waterproof membranes, while enhancing the integrity between waterproof membranes, reducing the possibility of leakage, reducing the waterproof maintenance cost of the project, and ensuring the service life and use function of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the structure of a polymer waterproof membrane;

[0042] Among them, 1 is a groove chain, 2 is a convex chain, and 3 is a polymer waterproof base film layer.

[0043] Figure 2 It is a schematic diagram of the overlap of two polymer waterproof membrane construction;

[0044] Among them, 1 is a groove chain, 2 is a convex chain, and 3 is a polymer waterproof base film layer.

[0045] Figure 3 It is a structural schematic diagram of a self-adhesive waterproof membrane;

[0046] Among them, 1 is a groove chain, 2 is a convex chain, 4 is a first isolation film layer, 5 is a first self-adhesive rubber layer, 6 is a self-adhesive coil base layer, 7 is a second self-adhesive rubber layer, and 8 is a second isolation film layer.

[0047] Figure 4 This is a schematic diagram of the overlap of two self-adhesive waterproof membrane construction;

[0048] Among them, 1 is a groove chain, 2 is a convex chain, 4 is a first isolation film layer, 5 is a first self-adhesive rubber layer, 6 is a self-adhesive coil base layer, and 7 is a second self-adhesive rubber layer.

[0049] Figure 5 A schematic diagram of the structure of the polymer waterproofing membrane provided in Comparative Example 1;

[0050] Among them, 3 is a polymer waterproof base membrane layer.

[0051] Figure 6 Schematic diagram of two overlapping polymer waterproof membrane construction provided for comparative example 1;

[0052] Among them, 3 is a polymer waterproof base membrane layer.

[0053] Figure 7 A schematic diagram of the structure of the self-adhesive waterproof membrane provided in Comparative Example 2;

[0054] Among them, 4 is a first isolation film layer, 5 is a first self-adhesive rubber layer, 6 is a self-adhesive coil base layer, 7 is a second self-adhesive rubber layer, and 8 is a second isolation film layer.

[0055] Figure 8 A schematic diagram of the structure of the self-adhesive waterproof membrane provided in Comparative Example 2;

[0056] Among them, 4 is a first isolation film layer, 5 is a first self-adhesive rubber layer, 6 is a self-adhesive coil base layer, and 7 is a second self-adhesive rubber layer. DETAILED DESCRIPTION

[0057] The technical solution of the present invention is further described below by specific implementation methods. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0058] Figure 1 It is a schematic diagram of the structure of polymer waterproof membrane. Figure 1 The waterproof coiled material shown comprises a polymer waterproof base membrane layer 3, a groove chain 1 is arranged on the upper surface of one end of the polymer waterproof base membrane layer 3, and a convex chain 2 is arranged on the lower surface of the other end of the polymer waterproof base membrane layer.

[0059] Figure 2 This is a schematic diagram of the overlap of two polymer waterproof membrane construction. Figure 2 As shown, take a piece of waterproof membrane and lay it, then lay the next piece of waterproof membrane, interlock the convex chain of the previous piece of waterproof membrane with the concave chain on the overlapping edge of the next piece of membrane, and then perform hot air welding on the overlapping part of the two waterproof membranes to melt the overlapping part, bond them into a whole, and complete the overlapping paving.

[0060] Figure 3 It is a schematic diagram of the structure of the self-adhesive waterproof membrane. Figure 3 The waterproof roll material shown is a self-adhesive waterproof roll material, which includes a first isolation membrane layer 4, a first self-adhesive rubber layer 5, a self-adhesive roll base layer 6, a second self-adhesive rubber layer 7 and a second isolation membrane layer 8 stacked in sequence. A groove chain 1 is provided on the upper surface of one end of the self-adhesive roll base layer 6 and extends into the first self-adhesive rubber layer 5. A convex chain 2 is provided on the lower surface of the other end of the polymer waterproof base membrane layer and extends into the second self-adhesive rubber layer 7.

[0061] Figure 4 It is a schematic diagram of the overlap of two self-adhesive waterproof membrane construction; Figure 4 As shown, take a piece of waterproofing membrane, remove the second isolation film 8, and then lay it. Then, remove the second isolation film 8 of the next piece of waterproofing membrane, and interlock the convex chain 2 of the previous piece of waterproofing membrane with the concave chain 1 on the overlapping edge of the next piece of membrane, so that the rubber layers at the overlapping part of the two waterproofing membranes are bonded to form a whole, and the overlapping laying is completed.

[0062] Example 1

[0063] The present embodiment provides a waterproof roll material, which is a polymer waterproof roll material, and includes a polymer waterproof base membrane layer, and a groove chain is arranged on the upper surface of one end of the polymer waterproof base membrane layer, and a convex chain is arranged on the lower surface of the other end of the polymer waterproof base membrane layer. The thickness of the polymer waterproof base membrane layer is 0.25 mm, and the material of the polymer waterproof base membrane layer is selected from TPO, and the materials of the groove chain and the convex chain are both selected from PVC, and the groove chain is arranged on the upper surface of one end of the polymer waterproof base membrane layer at 0 mm from the edge, and the convex chain is arranged on the lower surface of the other end of the polymer waterproof base membrane layer at 60 mm from the edge.

[0064] The preparation method of the waterproof coiled material is as follows: the groove chain and the convex chain are respectively compounded to the two ends of the upper and lower surfaces of the polymer waterproof base membrane layer by heating to 520° C. to obtain the waterproof coiled material.

[0065] The construction method of the waterproof membrane is as follows: take a piece of waterproof membrane for paving, then lay the next piece of waterproof membrane, interlock the convex chain of the previous piece of waterproof membrane with the concave chain on the overlapping edge of the next piece of membrane, and then perform hot air welding on the overlapping part of the two waterproof membranes to melt the overlapping part, bond them to form a whole, and complete the overlapping paving.

[0066] According to GB 50207-2012 "Code for Acceptance of Roof Engineering Quality", in order to verify the effective overlap width, after the overlap and paving of the roll material is completed, the cutting method is used to randomly check some points. The cutting width is about 2cm. The cut part is taken out and observed. The effective width of the welding is 2cm. The welding is firm and no leakage will occur.

[0067] In addition, a hook needle detection method is used to detect whether there is leakage or empty welding. That is, the hook needle is used to slide along the welding line. If there is no jamming, it means that there is no leakage or empty welding.

[0068] Example 2

[0069] The present embodiment provides a waterproof roll material, which is a polymer waterproof roll material, and includes a polymer waterproof base membrane layer, and a groove chain is arranged on the upper surface of one end of the polymer waterproof base membrane layer, and a convex chain is arranged on the lower surface of the other end of the polymer waterproof base membrane layer. The thickness of the polymer waterproof base membrane layer is 0.2 mm, and the material of the polymer waterproof base membrane layer is selected from PVC, and the materials of the groove chain and the convex chain are both selected from PVC, and the groove chain is arranged on the upper surface of one end of the polymer waterproof base membrane layer 5 mm away from the edge, and the convex chain is arranged on the lower surface of the other end of the polymer waterproof base membrane layer 65 mm away from the edge.

[0070] The preparation method of the waterproof coiled material is as follows: the groove chain and the convex chain are respectively compounded to the two ends of the upper and lower surfaces of the polymer waterproof base membrane layer by heating to 440° C. to obtain the waterproof coiled material.

[0071] The construction method of the waterproof membrane is as follows: take a piece of waterproof membrane for paving, then lay the next piece of waterproof membrane, interlock the convex chain of the previous piece of waterproof membrane with the concave chain on the overlapping edge of the next piece of membrane, and then perform hot air welding on the overlapping part of the two waterproof membranes to melt the overlapping part, bond them to form a whole, and complete the overlapping paving.

[0072] According to GB 50207-2012 "Code for Acceptance of Roof Engineering Quality", in order to verify the effective overlap width, after the overlap and paving of the roll material is completed, the cutting method is used to randomly check some points. The cutting width is about 2cm. The cut part is taken out and observed. The effective width of the welding is 2cm. The welding is firm and no leakage will occur.

[0073] In addition, a hook needle detection method is used to detect whether there is leakage or empty welding. That is, the hook needle is used to slide along the welding line. If there is no jamming, it means that there is no leakage or empty welding.

[0074] Example 3

[0075] The present embodiment provides a waterproof roll material, which is a self-adhesive waterproof roll material, and includes a first isolation film layer, a first self-adhesive rubber layer, a self-adhesive roll base layer, a second self-adhesive rubber layer, and a second isolation film layer stacked in sequence, and a groove chain is provided on the upper surface of one end of the self-adhesive roll base layer, and extends into the first self-adhesive rubber layer, and a convex chain is provided on the lower surface of the other end of the self-adhesive roll base layer, and extends into the second self-adhesive rubber layer. The thickness of the first isolation film layer and the second isolation film layer are both 100μm, and the material is PE; the thickness of the first self-adhesive rubber layer and the second self-adhesive rubber layer are both 1.0mm, and the material is self-adhesive asphalt; the thickness of the self-adhesive roll base layer is 3.0mm, and the material is polyester fiber non-woven fabric. The groove chain and the convex chain are both made of PE. The groove chain is arranged on the upper surface of one end of the self-adhesive coil tire base layer at 0 mm from the edge, and the convex chain is arranged on the lower surface of the other end of the self-adhesive coil tire base layer at 80 mm from the edge.

[0076] The waterproof roll material is a self-adhesive waterproof roll material, and the preparation method of the waterproof roll material comprises the following steps:

[0077] (1) High temperature lamination: The groove chain and the convex chain are heated to 500°C and laminated to the two ends of the upper and lower surfaces of the self-adhesive coil tire base respectively;

[0078] (2) Coating and covering: The upper and lower surfaces of the base layer of the self-adhesive roll obtained after high-temperature compounding in step (1) are coated with self-adhesive materials to form a first self-adhesive layer and a second self-adhesive layer, and then the first and second self-adhesive layers are covered with a first isolation film layer and a second isolation film layer to obtain the waterproof roll.

[0079] According to GB 50208-2011 "Code for Acceptance of Quality of Underground Waterproofing Projects" or GB50207-2012 "Code for Acceptance of Quality of Roofing Projects", self-adhesive membranes are also inspected by cutting. Some points are randomly checked, and the cutting width is about 2cm. The cut parts are taken out and observed. The effective width of the bonding is 2cm. The welding is firm and no leakage will occur.

[0080] Example 4

[0081] The present embodiment provides a waterproof roll material, which is a self-adhesive waterproof roll material, and includes a first isolation film layer, a first self-adhesive rubber layer, a self-adhesive roll base layer, a second self-adhesive rubber layer, and a second isolation film layer stacked in sequence, and a groove chain is provided on the upper surface of one end of the self-adhesive roll base layer, and extends into the first self-adhesive rubber layer, and a convex chain is provided on the lower surface of the other end of the self-adhesive roll base layer, and extends into the second self-adhesive rubber layer. The thickness of the first isolation film layer and the second isolation film layer are both 100μm, and the material is PE; the thickness of the first self-adhesive rubber layer and the second self-adhesive rubber layer are both 0.8mm, and the material is self-adhesive asphalt; the thickness of the self-adhesive roll base layer is 3.0mm, and the material is polyester fiber non-woven fabric. The groove chain and the convex chain are both made of PE. The groove chain is arranged on the upper surface of one end of the self-adhesive coil tire base layer 5 mm away from the edge, and the convex chain is arranged on the lower surface of the other end of the self-adhesive coil tire base layer 85 mm away from the edge.

[0082] The waterproof roll material is a self-adhesive waterproof roll material, and the preparation method of the waterproof roll material comprises the following steps:

[0083] (1) High temperature lamination: The groove chain and the convex chain are heated to 400°C and laminated to the two ends of the upper and lower surfaces of the self-adhesive coil tire base respectively;

[0084] (2) Coating and covering: The upper and lower surfaces of the base layer of the self-adhesive roll obtained after high-temperature compounding in step (1) are coated with self-adhesive materials to form a first self-adhesive layer and a second self-adhesive layer, and then the first and second self-adhesive layers are covered with a first isolation film layer and a second isolation film layer to obtain the waterproof roll.

[0085] The waterproof membrane is a self-adhesive waterproof membrane, and the construction method of the waterproof membrane is as follows: take a piece of waterproof membrane, remove the second isolation film, and then lay it, then remove the second isolation film of the next waterproof membrane, and then interlock the convex chain of the previous waterproof membrane with the concave chain on the overlapping edge of the next membrane, so that the adhesive layers at the overlapping part of the two waterproof membranes are bonded to form a whole, and the overlapping laying is completed.

[0086] According to GB 50208-2011 "Code for Acceptance of Quality of Underground Waterproofing Projects" or GB50207-2012 "Code for Acceptance of Quality of Roofing Projects", self-adhesive membranes are also inspected by cutting. Some points are randomly checked, and the cutting width is about 2cm. The cut parts are taken out and observed. The effective width of the bonding is 2cm. The welding is firm and no leakage will occur.

[0087] Example 5

[0088] This embodiment provides a polymer waterproof membrane, which is different from Embodiment 1 only in that the groove chain is arranged on the upper surface of one end of the polymer waterproof base membrane layer at 0 mm from the edge, and the convex chain is arranged on the lower surface of the other end of the polymer waterproof base membrane layer at 80 mm from the edge. The preparation method and construction overlap method of the waterproof membrane are the same as those of Embodiment 1.

[0089] According to GB 50207-2012 "Code for Acceptance of Roof Engineering Quality", in order to verify the effective overlap width, after the overlap and paving of the roll material is completed, the cutting method is used to randomly check some points. The cutting width is about 2cm. The cut part is taken out and observed. The effective width of the welding is 2cm. The welding is firm and no leakage will occur.

[0090] In addition, a hook needle detection method is used to detect whether there is leakage or empty welding. That is, the hook needle is used to slide along the welding line. If there is no jamming, it means that there is no leakage or empty welding.

[0091] Example 6

[0092] This embodiment provides a self-adhesive waterproof membrane, which differs from Embodiment 3 only in that the groove chain is arranged on the upper surface of one end of the self-adhesive membrane base layer at 0 mm from the edge, and the convex chain is arranged on the lower surface of the other end of the self-adhesive membrane base layer at 60 mm from the edge. The preparation method and construction overlap method of the waterproof membrane are the same as those of Embodiment 1.

[0093] According to GB 50208-2011 "Code for Acceptance of Quality of Underground Waterproofing Projects" or GB50207-2012 "Code for Acceptance of Quality of Roofing Projects", self-adhesive membranes are also inspected by cutting. Some points are randomly checked, and the cutting width is about 2cm. The cut parts are taken out and observed. The effective width of the bonding is 2cm. The welding is firm and no leakage will occur.

[0094] Comparative Example 1

[0095] This comparative example provides a waterproof roll material, which is a polymer waterproof roll material, and includes a polymer waterproof base membrane layer, the thickness of the polymer waterproof base membrane layer is 0.25mm, and the material of the polymer waterproof base membrane layer is selected from TPO. (such as Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of the polymer waterproofing membrane provided in Comparative Example 1.

[0096] The construction method of the waterproofing membrane is as follows: take a piece of waterproofing membrane and lay it, then lay the next piece of waterproofing membrane, perform hot air welding on the overlap of the two waterproofing membranes to melt the overlap, bond them to form a whole, and complete the overlap laying. (such as Figure 6 As shown, Figure 6 Schematic diagram of two overlapping polymer waterproof membrane construction provided for comparative example 1.

[0097] According to GB 50207-2012 "Code for Acceptance of Roof Engineering Quality", in order to verify the effective overlap width, after the overlap and paving construction of the roll material is completed, the cutting method is used to randomly check some points. The cutting width is about 2 cm. The cut part is taken out and observed. The effective width of the welding is 1.8 cm, indicating that there is a leaking weld or an empty weld, the welding is not firm, and leakage will occur.

[0098] In addition, a hook needle detection method is used to detect whether there is a leaky weld or a hollow weld. That is, a hook needle is used to slide along the welding line. If it gets stuck, it means that there is a leaky weld or a hollow weld.

[0099] Comparative Example 2

[0100] The present comparative example provides a waterproof roll material, which is a self-adhesive waterproof roll material, and the waterproof roll material comprises a first isolation film layer, a first self-adhesive rubber layer, a self-adhesive roll base layer, a second self-adhesive rubber layer and a second isolation film layer (such as Figure 7 As shown, Figure 7 Schematic diagram of the structure of the self-adhesive waterproofing membrane provided in Comparative Example 2). The thickness of the first isolation film layer and the second isolation film layer are both 100 μm, and the material thereof is PE; the thickness of the first self-adhesive rubber layer and the second self-adhesive rubber layer are both 1.0 mm, and the material thereof is self-adhesive asphalt; the thickness of the base layer of the self-adhesive membrane is 3.0 mm, and the material thereof is polyester fiber non-woven fabric.

[0101] The waterproof roll material is a self-adhesive waterproof roll material, and the preparation method of the waterproof roll material is: self-adhesive adhesive is coated on the upper and lower surfaces of the base layer of the self-adhesive roll material to form a first self-adhesive adhesive layer and a second self-adhesive adhesive layer, and then the first self-adhesive adhesive layer and the second self-adhesive adhesive layer are covered with a first isolation film layer and a second isolation film layer respectively to obtain the waterproof roll material.

[0102] The waterproof roll is a self-adhesive waterproof roll. The construction method of the waterproof roll is as follows: take a piece of waterproof roll, remove the second isolation film, and then lay it. Then, remove the second isolation film of the next piece of waterproof roll, and make the adhesive layer at the overlap of the two pieces of waterproof roll bonded to form a whole, and complete the overlap paving. (such as Figure 8 As shown, Figure 8 This is a schematic diagram of the structure of the self-adhesive waterproof membrane provided in Comparative Example 2.

[0103] According to GB 50208-2011 "Code for Acceptance of Quality of Underground Waterproofing Projects" or GB50207-2012 "Code for Acceptance of Quality of Roofing Projects", self-adhesive membranes are also inspected by cutting. Some points are randomly checked, and the cutting width is about 2 cm. The cut parts are taken out and observed. The effective width of the bonding is 1.7 cm. The welding is firm and no leakage will occur.

[0104] In summary, the present invention effectively solves the problem of incomplete sealing of the overlapping edges between waterproof membranes by arranging concave-convex chains on the polymer waterproof substrate and on the base layer of the self-adhesive membrane, while enhancing the integrity between the waterproof membranes, reducing the possibility of leakage, reducing the waterproof maintenance cost of the project, and ensuring the service life and use function of the building.

[0105] From the comparison between Example 1 and Comparative Example 1 and between Example 3 and Comparative Example 3, it can be seen that without providing the concave-convex chain, and directly bonding two polymer waterproof substrates by welding, or bonding two self-adhesive membranes, the maximum water pressure and the tolerance time are lower than those of the present invention, the integrity between the waterproof membranes is poor, the joints are not completely sealed, and leakage is prone to occur.

[0106] In addition, since the polymer waterproofing membrane without concave-convex chains in comparative example 1 is welded when overlapped, and the welding is done manually, there will be more or less leakage welding, empty welding, etc. Once the above situation occurs, it will affect the subsequent waterproofing effect and increase the risk of leakage. During the distribution process of the self-adhesive waterproofing membrane without concave-convex chains in comparative example 2, the piles of membranes are squeezed. Therefore, when the self-adhesive membrane is transported to the construction site for construction, a large number of wrinkles will appear on the surface of the spread waterproofing membrane. When the upper and lower membranes are overlapped, if the wrinkles of the overlapped edges of the upper and lower self-adhesive membranes overlap, "pinholes (i.e., small gaps)" may be formed, which will increase the risk of leakage in the later stage.

[0107] The applicant declares that the present invention uses the above-mentioned embodiments to illustrate the waterproofing coiled material and its preparation method and construction method of the present invention, but the present invention is not limited to the above-mentioned embodiments, that is, it does not mean that the present invention must rely on the above-mentioned embodiments to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of various raw materials of the product of the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the scope of protection and disclosure of the present invention.

Claims

1. A waterproof roll material, characterized in that: A groove chain is provided at one end of the waterproof coiled material, and a convex chain is provided at the other end of the waterproof coiled material; The waterproof roll material is a self-adhesive waterproof roll material; The self-adhesive waterproof membrane comprises a first insulating film layer, a first self-adhesive rubber layer, a self-adhesive membrane base layer, a second self-adhesive rubber layer and a second insulating film layer stacked in sequence; a groove chain is provided on the upper surface of one end of the self-adhesive membrane base layer at a distance of 0-5 mm from the edge and extends into the first self-adhesive rubber layer; a convex chain is provided on the lower surface of the other end of the self-adhesive membrane base layer at a distance of 80-85 mm from the edge and extends into the second self-adhesive rubber layer; the thickness of the first insulating film layer and the second insulating film layer are independently selected from 80-120 μm.

2. The waterproof coiled material according to claim 1, characterized in that: The materials of the first isolation film layer and the second isolation film layer are both PE.

3. The waterproof coiled material according to claim 1, characterized in that: The thickness of the first self-adhesive layer and the second self-adhesive layer are independently selected from 0.8-1.0 mm.

4. The waterproof coiled material according to claim 1, characterized in that: The materials of the first self-adhesive layer and the second self-adhesive layer are independently selected from asphalt and / or rubber.

5. The waterproof coiled material according to claim 1, characterized in that: The thickness of the self-adhesive coil base layer is 1.0-4.0 mm.

6. The waterproof coiled material according to claim 1, characterized in that: The material of the self-adhesive coil base layer is selected from any one of polyester fiber non-woven fabric, jute cloth or glass fiber felt, or a combination of at least two of them.

7. The waterproof coiled material according to claim 1, characterized in that: In the self-adhesive waterproof coiled material, the groove chain and the convex chain are both made of PE.

8. The method for preparing a waterproof coiled material according to any one of claims 1 to 7, characterized in that: The preparation method of the self-adhesive waterproof membrane comprises the following steps: (1) High temperature compounding: compounding the groove chain and the convex chain to the two ends of the upper and lower surfaces of the self-adhesive coil base by high temperature heating; (2) Coating and covering: The upper and lower surfaces of the base layer of the self-adhesive roll obtained after high-temperature compounding in step (1) are coated with self-adhesive material to form a first self-adhesive layer and a second self-adhesive layer, and then the first and second self-adhesive layers are covered with a first isolation film layer and a second isolation film layer, respectively, to obtain the self-adhesive waterproof roll.

9. The method for preparing the waterproof coiled material according to claim 8, characterized in that: In the self-adhesive waterproof membrane, the temperature of the high-temperature heating in step (1) is 400-500°C.

10. The construction method of the waterproof coiled material according to any one of claims 1 to 7, characterized in that: The construction method of the self-adhesive waterproof membrane is as follows: take a piece of waterproof membrane, peel off the second isolation film, and then lay it, then peel off the second isolation film of the next piece of waterproof membrane, and then interlock the convex chain of the previous piece of waterproof membrane with the concave chain on the overlapping edge of the next piece of membrane, so that the adhesive layers at the overlapping part of the two waterproof membranes are bonded to form a whole, and the overlapping laying is completed.

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